WO2000033298A3 - Monolithic optical head - Google Patents

Monolithic optical head Download PDF

Info

Publication number
WO2000033298A3
WO2000033298A3 PCT/US1999/028735 US9928735W WO0033298A3 WO 2000033298 A3 WO2000033298 A3 WO 2000033298A3 US 9928735 W US9928735 W US 9928735W WO 0033298 A3 WO0033298 A3 WO 0033298A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical head
curved surface
substrate
monolithic
monolithic optical
Prior art date
Application number
PCT/US1999/028735
Other languages
French (fr)
Other versions
WO2000033298A2 (en
Inventor
John Berg
David Buswell
John Ritter
Original Assignee
Terastor Corp
John Berg
David Buswell
John Ritter
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terastor Corp, John Berg, David Buswell, John Ritter filed Critical Terastor Corp
Publication of WO2000033298A2 publication Critical patent/WO2000033298A2/en
Publication of WO2000033298A3 publication Critical patent/WO2000033298A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/1058—Flying heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)

Abstract

A monolithic optical head (200) facilitates reading and writing optical data on an optical recording medium. The optical head (200) includes a monolithic substrate (210) formed of an optically transparent material. The substrate (210) has a first side (212) and a second flat side (216) opposing the first side (212). The first side (212) includes a central region that has a curved surface (220) to produce a lensing effect, and a peripheral region (201). The second flat side (216) has a central portion opposing the curved surface to couple radiation from and to the curved surface through the substrate. The second flat side (216) also has a peripheral portion opposing the peripheral region of the first side (212).
PCT/US1999/028735 1998-12-04 1999-12-03 Monolithic optical head WO2000033298A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11099398P 1998-12-04 1998-12-04
US60/110,993 1998-12-04

Publications (2)

Publication Number Publication Date
WO2000033298A2 WO2000033298A2 (en) 2000-06-08
WO2000033298A3 true WO2000033298A3 (en) 2000-08-31

Family

ID=22336054

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/028735 WO2000033298A2 (en) 1998-12-04 1999-12-03 Monolithic optical head

Country Status (2)

Country Link
US (1) US6545969B1 (en)
WO (1) WO2000033298A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6594430B1 (en) * 2000-05-11 2003-07-15 Carnegie Mellon University Solid immersion lenses for focusing collimated light in the near-field region
JP2002092995A (en) * 2000-09-18 2002-03-29 Sony Corp Optical head slider, method for manufacturing optical head slider and recording/reproducing device
WO2002063613A2 (en) * 2001-02-07 2002-08-15 University Of Rochester A system and method for high resolution optical imaging, data storage, lithography, and inspection
TWI238389B (en) * 2001-11-21 2005-08-21 Ind Tech Res Inst High density micro-optical pickup head
US7808944B2 (en) * 2003-11-21 2010-10-05 Interdigital Technology Corporation Wireless communication method and apparatus for controlling the transmission power of downlink and uplink coded composite transport channels based on discontinuous transmission state values
US7596072B2 (en) * 2004-12-22 2009-09-29 Seagate Technology Llc Optical recording using a waveguide structure and a phase change medium
US8339905B2 (en) * 2005-04-13 2012-12-25 Seagate Technology Llc Alignment features for heat assisted magnetic recording transducers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
US5615203A (en) * 1993-12-20 1997-03-25 Matsushita Electric Industrial Co., Ltd. Floating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a light source, condensing unit and photodetector and is supported movably relative to the floating slider
WO1997039445A1 (en) * 1996-04-15 1997-10-23 Digital Papyrus Technologies Method and apparatus for detecting the minimum glide height of a flying head and for focusing a lens carried on a flying head
WO1997041556A2 (en) * 1996-04-26 1997-11-06 Digital Papyrus Technologies Optical flying head with solid immersion lens having raised central surface facing media
US5881042A (en) * 1996-05-01 1999-03-09 Terastor Corporation Flying head with solid immersion lens partially mounted on a slider
WO1999016063A1 (en) * 1997-09-22 1999-04-01 Seagate Technology, Inc. Aperture stop for a flying optical head
EP0951015A2 (en) * 1998-04-13 1999-10-20 Aerial Imaging Corporation An optical or magneto-optic head and method of making the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243350B1 (en) * 1996-05-01 2001-06-05 Terastor Corporation Optical storage systems with flying optical heads for near-field recording and reading
US6324149B1 (en) * 1997-05-27 2001-11-27 Ricoh Company, Ltd. Optical-pick-up device achieving accurate positioning of objective lens and solid-immersion lens and method of forming same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
US5615203A (en) * 1993-12-20 1997-03-25 Matsushita Electric Industrial Co., Ltd. Floating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a light source, condensing unit and photodetector and is supported movably relative to the floating slider
WO1997039445A1 (en) * 1996-04-15 1997-10-23 Digital Papyrus Technologies Method and apparatus for detecting the minimum glide height of a flying head and for focusing a lens carried on a flying head
WO1997041556A2 (en) * 1996-04-26 1997-11-06 Digital Papyrus Technologies Optical flying head with solid immersion lens having raised central surface facing media
US5881042A (en) * 1996-05-01 1999-03-09 Terastor Corporation Flying head with solid immersion lens partially mounted on a slider
WO1999016063A1 (en) * 1997-09-22 1999-04-01 Seagate Technology, Inc. Aperture stop for a flying optical head
EP0951015A2 (en) * 1998-04-13 1999-10-20 Aerial Imaging Corporation An optical or magneto-optic head and method of making the same

Also Published As

Publication number Publication date
WO2000033298A2 (en) 2000-06-08
US6545969B1 (en) 2003-04-08

Similar Documents

Publication Publication Date Title
EP1030293A3 (en) Multiple data surface optical medium and data storage system
EP1396855A3 (en) Optical data recording medium and manufacturing method for the same; and a method for clamping the optical data recording medium
EP0814468A4 (en) Laminated proximity field optical head and optical information recording and reproducing device
MX9600715A (en) Optical recording medium and method of producing same.
MY117895A (en) Optical recording medium and method of manufacturing same
EP0368570A3 (en) Optical card
EP0354601A3 (en) Optical information recording medium providing reflected light at two different wavelengths, reproducing apparatus and method utilizing the same
EP0407615A4 (en) Thermal transfer recording medium
EP0994470A3 (en) Optical recording medium and optical recording/reproducing apparatus
WO1996028816A3 (en) Device for optically scanning a recording medium
EP0867874A3 (en) Optical recording medium having dual information surfaces
EP0915458A3 (en) Optical head and optical disk apparatus
EP0375298A3 (en) Optical information recording media
EP0911820A4 (en) Optical recording medium and its substrate
AU6698386A (en) Card data carrier and method of producing it
MY103826A (en) Method for affixing information on read-only optical disks.
EP0864997A3 (en) Information recording medium and production process thereof
DE68910546D1 (en) Information recording medium, manufacturing process and embossing die of the substrate therefor.
EP0886269A3 (en) Optical disk satisfying plural standards
EP1302939A3 (en) Optical information recording medium
MY118378A (en) Information recording substrate and information recording medium prepared from the substrate.
EP0862168A3 (en) Optical disk apparatus having a reduced size
EP0376327A3 (en) Optical recording medium
EP0855702A3 (en) Optical disc
WO2000033298A3 (en) Monolithic optical head

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

122 Ep: pct application non-entry in european phase